345772120 has 32 divisors (see below), whose sum is σ = 786736800. Its totient is φ = 136753408.

The previous prime is 345772111. The next prime is 345772123. The reversal of 345772120 is 21277543.

345772120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345772123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45004 + ... + 52123.

It is an arithmetic number, because the mean of its divisors is an integer number (24585525).

Almost surely, 2^345772120 is an apocalyptic number.

It is an amenable number.

345772120 is an abundant number, since it is smaller than the sum of its proper divisors (440964680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345772120 is a wasteful number, since it uses less digits than its factorization.

345772120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97227 (or 97223 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 345772120 is about 18594.9487764823. The cubic root of 345772120 is about 701.8807382836.

The spelling of 345772120 in words is "three hundred forty-five million, seven hundred seventy-two thousand, one hundred twenty".